Which herbs serve as assistant herbs in Cha Ge Jia Ji Tang and what do they do?

• A. Ge Gen & Bai Shao - release muscle, direct herbs up
• B. Bai Shao & Jie Geng - release muscle, direct herbs up
• C. Bai Zhu & Huang Qin - tonify spleen
• D. Mu Dan Pi & Sheng Jiang - clear heat

Answer: (B)

In this formula, assistant herbs serve to support the main action—releasing the exterior muscle layer—while also guiding that action where it needs to go. The pair of Bai Shao and Jie Geng fit this role best. Bai Shao nourishes and stabilizes, softly releasing the sinews and helping balance the exterior release so it doesn’t overly injure yin. Jie Geng functions as the upward-directing herb, guiding the therapeutic action toward the upper body and aiding the ascent of qi. Together, they back up the chief herb’s exterior-release action and ensure the formula works effectively to release the muscle layer and direct the effects upward. The other options center on tonifying or clearing heat, which aren’t the primary assistant roles in this context.